Home / 148,573.11-205,029.67-80,589.91

Finding the Fourth Proportional to 148,573.11, 205,029.67 and 80,589.91

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Solution

The fourth proportional to 148,573.11, 205,029.67 and 80,589.91 is: 111,213.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,573.11 : 205,029.67 = 80,589.91 : x
  2. Step 2: Convert to fraction form
    148,573.11/205,029.67 = 80,589.91/x
  3. Step 3: Cross multiply
    148,573.11x = 205,029.67 × 80,589.91
  4. Step 4: Simplify right side
    148,573.11x = 16,523,322,652.63
  5. Step 5: Solve for x
    x = 16,523,322,652.63/148,573.11
  6. Step 6: Final answer
    x = 111,213.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.